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EWG's Tap Water Database — 2021 UPDATE

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Cobalt

Cumberland

Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND100ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 70 ppb

The EWG Health Guideline of 70 ppb for cobalt was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against change in blood chemistry.

ppb = parts per billion

All test results

Date Lab ID Result
2015-01-27201501300362AMND
2015-01-27201501300366AMND
2015-01-28201501300084AMND
2015-01-28201501300449AMND
2015-01-29201501300079AMND
2015-04-16201504170233AMND
2015-04-16201504170424AMND
2015-07-27201507300255AMND
2015-10-21201510220274AMND
2015-10-21201510220319AMND